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Registro Completo |
Biblioteca(s): |
Embrapa Soja. |
Data corrente: |
08/10/1992 |
Data da última atualização: |
27/03/2024 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
TOLEDO, J. F. F. de; POONI, H. S.; JINKS, J. L. |
Afiliação: |
EMBRAPA-CNPSo. Londrina, PR. |
Título: |
Predicting the properties of second cycle hybrids produced by intercrossing random samples of recombinant inbred lines. |
Ano de publicação: |
1984 |
Fonte/Imprenta: |
Heredity, Harlow, v. 53, n. 2, p. 283-292, Oct. 1984. |
Idioma: |
Inglês |
Conteúdo: |
Distributive properties of the second cycle hybrids that are produced by intercrossing the recombinant inbreds extractable from the F2 of a cross between two pure breeding lines can be predicted from the early generatinos of the original cross. Hence the frequency of such hybrids that will outperform the extreme recombinant inbreds or the original F1 can be predicted. Basic generations and triple test cross families provide the most reliable estimates of the predictors and therefore should be used whenever possible although, in the presence of linkage, randomly mated F2's may give improved predictions. Simpler experiments consisting of the parental varieties and their F1 and F2 generations, however, provide all the information that is likely to be necessary for most practical purposes. The predictive power of the new approach is demonstrated on material extracted from the cross of varieties 1 and 5 of Nicotiana rustica. The predictors were estimated from the means and variances of V1, V5, F1 and F2 raised in six environments between 1973 and 1983. The predicted frequencies of second cycle F1's which outperform the extreme recombinant inbred lines derived from this cross are compared with those observed among 190 second cycle hybrids in a diallel between 20 recombinant inbreds derived from the same cross. |
Palavras-Chave: |
Genetic; Hybrid; Plant. |
Thesagro: |
Genética; Hibrido; Melhoramento; Planta. |
Thesaurus Nal: |
breeding. |
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
Marc: |
LEADER 02004naa a2200241 a 4500 001 1444761 005 2024-03-27 008 1984 bl uuuu u00u1 u #d 100 1 $aTOLEDO, J. F. F. de 245 $aPredicting the properties of second cycle hybrids produced by intercrossing random samples of recombinant inbred lines.$h[electronic resource] 260 $c1984 520 $aDistributive properties of the second cycle hybrids that are produced by intercrossing the recombinant inbreds extractable from the F2 of a cross between two pure breeding lines can be predicted from the early generatinos of the original cross. Hence the frequency of such hybrids that will outperform the extreme recombinant inbreds or the original F1 can be predicted. Basic generations and triple test cross families provide the most reliable estimates of the predictors and therefore should be used whenever possible although, in the presence of linkage, randomly mated F2's may give improved predictions. Simpler experiments consisting of the parental varieties and their F1 and F2 generations, however, provide all the information that is likely to be necessary for most practical purposes. The predictive power of the new approach is demonstrated on material extracted from the cross of varieties 1 and 5 of Nicotiana rustica. The predictors were estimated from the means and variances of V1, V5, F1 and F2 raised in six environments between 1973 and 1983. The predicted frequencies of second cycle F1's which outperform the extreme recombinant inbred lines derived from this cross are compared with those observed among 190 second cycle hybrids in a diallel between 20 recombinant inbreds derived from the same cross. 650 $abreeding 650 $aGenética 650 $aHibrido 650 $aMelhoramento 650 $aPlanta 653 $aGenetic 653 $aHybrid 653 $aPlant 700 1 $aPOONI, H. S. 700 1 $aJINKS, J. L. 773 $tHeredity, Harlow$gv. 53, n. 2, p. 283-292, Oct. 1984.
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Embrapa Soja (CNPSO) |
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Registro Completo
Biblioteca(s): |
Embrapa Roraima. |
Data corrente: |
23/02/2011 |
Data da última atualização: |
15/03/2011 |
Tipo da produção científica: |
Artigo em Anais de Congresso |
Autoria: |
ALBUQUERQUE, T. C. S. de; RODRIGUES, F. M.; RODRIGUES, J. D. |
Afiliação: |
TERESINHA COSTA S DE ALBUQUERQUE, CPAF-RR. |
Título: |
Aminoácidos e as reservas nutricionais da videira CV. Italia muscat no submédio do Vale do São Francisco. |
Ano de publicação: |
2010 |
Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE FRUTICULTURA, 21., 2010, Natal. Frutas: saúde, inovação e responsabilidade: anais. Natal: SBF, 2010. |
Idioma: |
Português |
Palavras-Chave: |
Videira. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00547naa a2200145 a 4500 001 1878610 005 2011-03-15 008 2010 bl --- 0-- u #d 100 1 $aALBUQUERQUE, T. C. S. de 245 $aAminoácidos e as reservas nutricionais da videira CV. Italia muscat no submédio do Vale do São Francisco. 260 $c2010 653 $aVideira 700 1 $aRODRIGUES, F. M. 700 1 $aRODRIGUES, J. D. 773 $tIn: CONGRESSO BRASILEIRO DE FRUTICULTURA, 21., 2010, Natal. Frutas: saúde, inovação e responsabilidade: anais. Natal: SBF, 2010.
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